The O-Tac Gear Hammer Shot Kit is a drop in kit that
converts the cylinder from 5 to 6 shots, changes the hammer angle to make it
more ergonomic, and replaces the trigger and mainspring. The cylinder has been
completely re-engineered to make room for a 6th dart while also
increasing efficiency. The inner diameter of each chamber has been tightened to
make the most use out of the available air volume and the mouth of each chamber
has been widened and tapered to facilitate easy loading. The cylinder
automatically holds the air restrictor in the open position allowing you to use
shortened darts without having to ramrod each dart when loading. You can also
stack two short darts in the cylinder for double shots with reduced range. The
hammer has been re-angled and textured to allow for smooth priming even with
the 8kg spring installed.

Awesome - installation was a breeze, the minor modifications that I had read about in previous reviews were unnecessary, and so far there has been no need for me to use the upgraded foam seal that I received with the kit, so I'll have a spare for the future - just in case.The barrel got a new coat of paint - orange isn't really my colour, sorry guys! - but the quality of OMW's paintjob meant that mine went over the top of it without any problems at all.Here's a link to my finished piece: http://i.imgur.com/9QMwefj.jpgand more here:http://vimfuego2000.deviantart.com/